EP 0691459 A1 19960110 - A catalyst system
Title (en)
A catalyst system
Title (de)
Katalysator System
Title (fr)
Système catalytique
Publication
Application
Priority
US 27097294 A 19940705
Abstract (en)
This invention is directed to a catalyst system for treating internal combustion engine exhaust gases, the system having enhanced hydrocarbon trapping efficiency which is particularly advantageous during cold start. The system comprises a hydrocarbon polymerisation catalyst (12,12'), a hydrocarbon trap (14,14') located downstream of the hydrocarbon (HC) polymerisation catalyst (12,12') and an exhaust treatment catalyst (16,16'). The hydrocarbon polymerisation catalyst (12,12') is capable of forming larger (HC) molecules from smaller HC molecules. <MATH>
IPC 1-7
IPC 8 full level
B01D 53/94 (2006.01); F01N 3/08 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01); F01N 13/02 (2010.01)
CPC (source: EP US)
B01D 53/944 (2013.01 - EP US); B01D 53/945 (2013.01 - EP US); B01D 53/9486 (2013.01 - EP US); F01N 3/08 (2013.01 - EP US); F01N 3/0814 (2013.01 - EP US); F01N 3/0835 (2013.01 - EP US); F01N 3/0878 (2013.01 - EP US); F01N 3/2053 (2013.01 - EP US); F01N 3/2882 (2013.01 - EP US); F01N 13/009 (2014.06 - EP US); B01D 2255/102 (2013.01 - EP US); B01D 2255/206 (2013.01 - EP US); B01D 2255/207 (2013.01 - EP US); F01N 2250/12 (2013.01 - EP US); F01N 2410/12 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US)
Citation (applicant)
US 4958210 A 19900918 - KRISHNA SURINDER [US], et al
Citation (search report)
- [A] EP 0584737 A1 19940302 - TOYOTA MOTOR CO LTD [JP]
- [A] EP 0466318 A1 19920115 - BRITISH PETROLEUM CO PLC [GB]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0691459 A1 19960110; EP 0691459 B1 19981111; DE 69505902 D1 19981217; DE 69505902 T2 19990401; US 5814287 A 19980929
DOCDB simple family (application)
EP 95304697 A 19950705; DE 69505902 T 19950705; US 96955897 A 19971113